From Kelley's Extracurricular Activity Projective Reconstruction, a series of video pieces started in 2000 Photograph: Gagosian Gallery
This was Kelley's last show in London. At its heart was a darkly crystalline cave made from synthetic materials, with props from a fantasy film inside Photograph: Gagosian Gallery
Mixed media with video projection Photograph: Gagosian Gallery
One of Kelley's representations of Kandor, a fictional city on Superman's home planet, Krypton Photograph: Gagosian Gallery
Kelley's installations often invoked a sense of unease Photograph: Gagosian Gallery
Kelley noticed that Kandor was represented in various ways in Superman comic books, and created a number of 3D representations of the city Photograph: Gagosian Gallery
From Kelley's Extracurricular Activity Projective Reconstruction Photograph: Gagosian Gallery
In a statement following Kelley's death, Helen Winer of New York gallery Metro Pictures, who represented Kelley for 20 years, said: 'We know his legacy will continue to touch and challenge anyone who crosses its path' Photograph: Gagosian Gallery
